Monday, March 30, 2020
alexandria virginia

New High-voltage Underground Transmission Line Coming to Alexandria

Question is, where’s it going to go?

As we told you, the City of Alexandria appointed an Ad Hoc Underground Transmission Line and Substation Working Group which met last Thursday night (You can see the LIVE blog at this link). The group was formed because Dominion Virginia Power came to the City in April with a proposal to construct a new 230 kilo-volt underground transmission line between Alexandria and Arlington in the vicinity of Jefferson Davis Highway and Potomac Yard (see map below). The website for Dominion’s project is at this link.

The project upgrades equipment at the existing switching station on E. Abingdon Drive in Alexandria, and connects a new high-voltage transmission between it and the Glebe Substation on S. Glebe Road in Arlington. The project is needed to tap into the PEPCO system at the switching station in Alexandria to ensure reliability in 2018 and beyond.

Some of my top takeaways from the meeting last Thursday night (which you can find on the LIVE blog):

  • Dominion moving forward with application in late November to the Virginia State Corporation Commission (SCC).
  • Goal of group to provide staff with feedback for City’s response to Dominion application.
  • Project is needed because current transmission system is ‘generation deficient’.
  • Demand on transmission system in Northern Virginia is forecasted to exceed capacity daily by 2018.
  • How will this transmission line affect choice of Potomac Yard Metro?

Dominion is going to be holding a public meeting on this proposal on October 1 at the Mount Vernon Community School (Community Room) from 5:00 PM to 8:00 PM.

Possible routes for the line in Alexandria are after the jump…

Here are the possible routes for the new transmission line. As you can see, one of the possible routes is underwater. Dominion is proposing that it go right down Jefferson Davis Highway because this will be the least costly route.

Question is, how expensive is it to go out underwater? The more expensive the cost to bury this line, the more $ you and I will pay for electricity. It was revealed at the meeting that when the NRG power station was shut down, PEPCO spent $75 Million burying lines across the Potomac River.

power line route options



Lee Hernly, Editor
the authorLee Hernly, Editor
Founder & Editor
Lee Hernly is the Founder and Editor of Port City Wire, Alexandria, Virginia's best source for hyper-local news, opinion, and events. I live in the Old Town Alexandria area with my fantastic wife and son Sam. Oh, there’s Serena & Bea too. I’m so excited to meet new readers and see where you are from! Please be sure to leave a comment with a link to your blog so I can check it out!

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